Improved door-bolt



v UNITED STATES PATENT OFFICE.

GEO. M. WOOD, OF DEOATUR, ILLINOIS.

IMPROVED DOOR-BOLT. A

Specification forming part of Letters Patent No. 57,241, dated August14, 1866.

To all whom it may concern:

Beit known that I, Gr. M. WOOD, ot' Decatur, in the county ot` Macon andState of Illinois, have invented anew and Improved Slide-Bolt; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable those skilled in the art to makeand use the saine, reference being had to the accompanying drawings,forming part ot' this specilication, in which- Figure l is alongitudinal vertical section of my invention, taken in the line ./r a',Fig. 3; Fig. 2, a transverse vertical section ot" the same, taken in theline y y, Fig. 1; Fig. 3, an outer view ot' the same.

Similar letters ot' reference indicate corresponding parts.

This in vrntion relates to a new and improved slide-bolt, designed moreespecially for doors, windows, Sac., but capable ot' being used in allcases where slide-bolts are required.

The object ot' the invention is to obtain a simple and efficientslide-bolt, and one which may be constructed at a small cost.

A represents the bolt, which may be of seinicircular form in itstransverse section, and of any desirable dimensions. The bolt is hollowits entire length, closed at its ends, and has a longitudinal slot, c,in its bottom or inner side, which is a plane, as shown clearlyin Fig.2. This bolt may be of wrought or cast metal.

B is a metal plate, which has a longitudinal slot, b, made in it, and issecured to the door O or other article to which the bolt is to beapplied by screws D, and the bolt A is secured to the plate B by thesame screws, which pass through the slot c in the inner side of the boltand the slot b in the plate.

The heads of the screws D project over the edges of the slot a, and thescrews serve as guides for the bolt A, and the end screws serve as stopsfor the same, limiting its sliding movement.

The bolt A is provided with a knob, E, which screws into it, and byunscrewing the knob the screws D- may be screwed into the door O throughthe, slots a b. the bolt A being moved' or adjusted so that the hole inwhich the knob is screwed will be brought successively over the points1, 2, 3, and 4, the screw l heilig tirst put in, and then the screw 2,and so on. (See Fig. l.

F represents the keeper into which the end of the bolt A passes, andwhich may be applied in such a manner as to be adjustable to compensatefor shrinkage. This bolt may be mauufa-ctured at a very reasonable cost,and may be used in all cases where slide-bolts can be applied. i

Having thus described my invention, l claim as new and desire to secureby Letters Patent- The semicircular hollow bolt A, provided with alongitudinal slot, a, in its inner side, and a hole for a knob on itsout-side, in combination with the plate B, having a longitudinal slot,b, in it i'orthe screws D to pass through and secure the plate and boltto the door or other article to which the boltis to be applied, allconstructed substantially as A shown and described.

G. M. `WOOD.

Witnesses OLIVER H. MGBRIDE, CEAS. C. MoGoMAs.

